To not hijack this thread but an acquaintance of mine that creates ammunition suggests the Federal 210M primer. Why, I don't know as he was making an attempt not to give me proprietary info. I'll make use of the Lee Hand Priming Software when I get all around to utilizing https://federal-ar-primers30675.myparisblog.com/32351631/facts-about-federal-large-pistol-primers-no-150-revealed